Study on Tribological Behavior of Ni/MoS2 Composite Brush Plating Layer

摘要

正 Based on the good solid lubrication behavior of MoS₂ and technological characteristics ofbrush plating,a new type Ni/MoS₂ composite brush plating layer was developed and studied.The friction andwear properties were measured systematically on a“ball-on-disc”testing machine under both lubricatedand dry conditions.Experimental results show that its properties are related closely with the content ofMoS₂ in the plating layer and working conditions,such as load and sliding speed.An optimum frictioncoefficient and wear-resistance can be obtained at an appropriate content of MoS₂.In order to clarifythe reasons of an excellent solid lubrication property of this composite plating layer,deep analyses of itsmicrostructure by TEM and X-ray diffraction were conducted,and the preferred orientation of MoS₂ withits basal planes parallel to the surface of material has been revealed.